add bitcoin withdraw max fee validation config

backend/src/config/index.ts

@@ -103,7 +103,8 @@ export const getAppConfig = (): AppConfig => {
             digitalStockAttachmentsMax: envInt('VALIDATION_DIGITAL_STOCK_ATTACHMENTS_MAX'),
             shippingNoteMinLength: envInt('VALIDATION_SHIPPING_NOTE_MIN_LENGTH'),
             shippingNoteMaxLength: envInt('VALIDATION_SHIPPING_NOTE_MAX_LENGTH'),
-            orderMessageMaxLength: envInt('VALIDATION_ORDER_MESSAGE_MAX_LENGTH')
+            orderMessageMaxLength: envInt('VALIDATION_ORDER_MESSAGE_MAX_LENGTH'),
+            bitcoinWithdrawMaxFeeRateSatVbyte: envInt('VALIDATION_BITCOIN_WITHDRAW_MAX_FEE_RATE_SAT_VBYTE')
         }
     };
 };

backend/src/config/validate.ts

@@ -153,6 +153,12 @@ class EnvironmentVariables {
     @Max(10000)
     VALIDATION_ORDER_MESSAGE_MAX_LENGTH: number;
 
+    @IsNotEmpty()
+    @IsNumber()
+    @Min(1)
+    @Max(1000)
+    VALIDATION_BITCOIN_WITHDRAW_MAX_FEE_RATE_SAT_VBYTE: number;
+
     @IsNotEmpty()
     @IsNumber()
     @Min(4)